//===----------------------------------------------------------------------===//

//

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.

// See https://llvm.org/LICENSE.txt for license information.

// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception

//

//===----------------------------------------------------------------------===//

#include "__cxxabi_config.h"

#include "cxxabi.h"

// Tell the implementation that we're building the actual implementation

// (and not testing it)

#define BUILDING_CXA_GUARD

#include "cxa_guard_impl.h"

/*

    This implementation must be careful to not call code external to this file

    which will turn around and try to call __cxa_guard_acquire reentrantly.

    For this reason, the headers of this file are as restricted as possible.

    Previous implementations of this code for __APPLE__ have used

    std::__libcpp_mutex_lock and the abort_message utility without problem. This

    implementation also uses std::__libcpp_condvar_wait which has tested

    to not be a problem.

*/

namespace __cxxabiv1 {

#if defined(_LIBCXXABI_GUARD_ABI_ARM)

using guard_type = uint32_t;

#else

using guard_type = uint64_t;

#endif

extern "C"

{

_LIBCXXABI_FUNC_VIS int __cxa_guard_acquire(guard_type* raw_guard_object) {

  SelectedImplementation imp(raw_guard_object);

  return static_cast<int>(imp.cxa_guard_acquire());

}

_LIBCXXABI_FUNC_VIS void __cxa_guard_release(guard_type *raw_guard_object) {

  SelectedImplementation imp(raw_guard_object);

  imp.cxa_guard_release();

}

_LIBCXXABI_FUNC_VIS void __cxa_guard_abort(guard_type *raw_guard_object) {

  SelectedImplementation imp(raw_guard_object);

  imp.cxa_guard_abort();

}

} // extern "C"

}  // __cxxabiv1